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2025-07-12 - 12:49
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackfslot7.osadl.org (updated Sat Jul 12, 2025 00:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3759834997613,20cyclictest0-21swapper/623:35:206
3759829997517,19cyclictest191rcu_preempt22:40:191
3759834997336,18cyclictest781ktimers/600:09:156
3759834997132,38cyclictest0-21swapper/623:25:306
3759834996931,38cyclictest0-21swapper/623:31:316
3759834996930,39cyclictest0-21swapper/600:37:276
3759834996831,18cyclictest3850955-21gltestperf21:50:196
3759834996729,19cyclictest0-21swapper/621:35:116
3759834996728,19cyclictest0-21swapper/620:58:556
375983499657,39cyclictest0-21swapper/622:41:426
375983499656,19cyclictest0-21swapper/619:40:536
3759834996344,19cyclictest781ktimers/621:27:236
375983499624,0cyclictest0-21swapper/619:50:496
375983499623,0cyclictest0-21swapper/620:23:126
375983499623,0cyclictest0-21swapper/619:22:046
375983499613,0cyclictest0-21swapper/619:11:576
375983499612,19cyclictest0-21swapper/621:48:576
375983499602,0cyclictest0-21swapper/620:00:056
375983499601,19cyclictest0-21swapper/623:52:576
375983499601,19cyclictest0-21swapper/622:54:336
3759834995921,38cyclictest1088-21runrttasks23:05:256
375983499591,19cyclictest0-21swapper/620:34:136
375983499591,19cyclictest0-21swapper/620:34:126
375983499590,19cyclictest0-21swapper/620:41:536
375983499590,0cyclictest0-21swapper/622:38:336
375983499580,58cyclictest0-21swapper/619:58:366
375983499580,0cyclictest0-21swapper/621:42:576
3759834995719,0cyclictest875-21mta-sts-daemon23:05:016
3759834995619,36cyclictest0-21swapper/623:24:236
3759834995615,19cyclictest3939639-21timerwakeupswit00:25:256
3759828995636,20cyclictest3750878-21kworker/4:019:50:420
3759834995516,18cyclictest3943170-21munin-run00:35:016
3759834995516,0cyclictest3775070-21/usr/sbin/munin19:35:176
3759834995419,15cyclictest0-21swapper/622:28:236
3759834995415,0cyclictest3859994-21ntpq22:05:206
3759834995415,0cyclictest3832289-21find21:15:256
3759834995414,0cyclictest0-21swapper/620:50:136
3759834995319,34cyclictest0-21swapper/600:13:476
3759834995316,18cyclictest3779829-21kworker/u32:0+flush-8:021:00:106
3759834995314,19cyclictest3869502-21munin-run22:25:016
3759834995314,19cyclictest3795212-21ntpq20:10:216
3759834995314,0cyclictest0-21swapper/619:45:256
3759834995314,0cyclictest0-21swapper/619:15:216
3759834995313,40cyclictest0-21swapper/622:05:016
3759834995313,19cyclictest0-21swapper/623:44:416
3759834995313,19cyclictest0-21swapper/619:35:016
3759834995233,19cyclictest0-21swapper/623:45:036
3759834995233,19cyclictest0-21swapper/622:59:116
3759834995233,19cyclictest0-21swapper/621:09:076
3759834995233,0cyclictest0-21swapper/620:06:116
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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